instance_id = JSON.parse(instance_id_json)
instance_id['rows'].each do |row|
   	instances = row['normal']['tags']
   	instances.each do |instance|
   		volume_id_json = `aws ec2 describe-instances --instance-ids #{instance} --output json`
   		volume_ids = JSON.parse(volume_id_json)
   		volume_ids['Reservations'][0]['Instances'][0]['BlockDeviceMappings'].map do |volume_id|
   			volumes = volume_id['Ebs']['VolumeId']
            volumes.each do |volume|
               	description="Snapshot of Instance #{instance} created on #{DATE}"
   				`aws ec2 create-snapshot --volume-id "#{volume}" --description "#{description}"`
   				exitstatus = $?.to_i
				if exitstatus != 0
					puts "Unable to get node names from Chef"
				end
			end
		end
   	end
end

ebs_snapshot_new.rb:21:in `block (3 levels) in <main>': undefined method `each' for "vol-2662ec23":String (NoMethodError)
	from ebs_snapshot_new.rb:19:in `map'
	from ebs_snapshot_new.rb:19:in `block (2 levels) in <main>'
	from ebs_snapshot_new.rb:16:in `each'
	from ebs_snapshot_new.rb:16:in `block in <main>'
	from ebs_snapshot_new.rb:14:in `each'
	from ebs_snapshot_new.rb:14:in `<main>'